Microsoft Teams and Outlook Face Launch Issues on Arm-Based Devices
In a recent announcement, Microsoft has identified a troubling issue that may affect users of its popular applications, particularly Microsoft Teams and the new Outlook for Windows, on Arm-based devices such as the Surface Pro 11 and Surface Laptop 7. This problem arises following the installation of Windows security updates released on or after August 11, 2026, specifically the KB5121003 update.
According to Microsoft, the affected Windows 11 versions include 24H2, 25H2, and 26H1. Users may find that these applications either fail to launch or close unexpectedly, while classic applications like Outlook, Word, and Excel remain unaffected. The issue appears to be more prevalent on new or freshly imaged PCs that have yet to receive any updates from the Microsoft Store.
In response to this challenge, Microsoft is actively working on a solution, which will be rolled out in a forthcoming Windows update. In the meantime, users experiencing instability with Microsoft Teams and the new Outlook can follow a simple workaround. By navigating to the Microsoft Store and selecting Downloads → Check for updates, users should install the latest version of the Auto Super Resolution Package (version 1.0.19.0 or later) to mitigate the issue.
This situation highlights the ongoing complexities of software updates and their impact on user experience, particularly in an era where remote work and digital communication tools are more critical than ever. As Microsoft continues to address these concerns, users are encouraged to stay informed and proactive in managing their software environments.
